Nikon mount 2x teleconverter. Please check the condition in the images. I have confirmed that it works when attached to a camera. I bought it because I wanted it, but I'm selling it because I don't have a chance to use it. Although it has been used very little, it has been carried in a case. There are some minor scratches and scuffs. Stored in a home dry box, inspected by an amateur, please understand that this is a used item before purchasing. #SIGMA #APO #Sigma #Teleconverter #Nikon mount #Nikon